T Chapter 1 /tacomacc.instructure.com/courses/1637859/assignments/12942630 submi
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T Chapter 1 /tacomacc.instructure.com/courses/1637859/assignments/12942630 submit MasteringBiology: Chapter 1 -Google Chrome https://session.masteringbiology.com/myct/itemView?offset next&lassignmentProblemiD; 115522562 g Vocabulary: Key Terms in Science Reset Help 1. The type of test that changes only one variable at a time in order to isolate the results is known as a that is manipulated by a apotental cause vanable is 9-factor seerest observes to set th e?ect of the change made control is group eoperime esearchars know beatment andExplanation / Answer
The type of test that changes only one variable at a time in order to isolate the result is known as Controlled experiment
The variable that is manipulate by the scientist as the potential cause in an experiment is the Independent variable.
The dependent variable is the factor a scientist observes to see the effect of the change made.
A Control Group establishes a base line for an experiment
A Negative Control is a group in which no response is expected
A Positive Control is a group which is known response is expected.
In a Single blind experiment the researcher but not the participants know who receive the treatment and who does not, to eliminate subjective bias.
In a Double blind experiment neither the participants nor the researcher knows who receives the treatment and who does not
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